Patients were eligible to participate in the study if their most current hemoglobin A1c (HbA1c) was >=8.5 (reported within the last year); they had at least 1 prescription for an oral hypoglycemic agent, insulin, or monitoring supplies filled in the last year; and, they had an outpatient visit scheduled with a general internist, nurse practitioner, or physician assistant between May, 1999 and January, 2000.